Each of the following describes some futuristic scenario that, while perhaps entertaining, may or may not be plausible. In each case, decide whether the scenario is plausible according to our present understanding of science or whether it is unlikely to be possible. Explain clearly; because not all of these have definitive answers, your explanation is more important than your chosen answer.
Human colonization of the moons of Saturn occurs using spaceships powered by dropping nuclear bombs out the back of the ships.
Want to see the full answer?
Check out a sample textbook solutionChapter 13 Solutions
Life in the Universe (4th Edition)
Additional Science Textbook Solutions
The Cosmic Perspective Fundamentals (2nd Edition)
Sears And Zemansky's University Physics With Modern Physics
An Introduction to Thermal Physics
University Physics (14th Edition)
College Physics (10th Edition)
- Can you please solve question number 2 explaining step by step, on a picture please. Just post the picture of how you did it please, DON'T TYPE IT ON THE WEBSITE. Thanks.arrow_forwardCruise Ship Enery. Suppose we have a spaceship about the size of a typical ocean cruise ship today, which means it has a mass of about l00 million kilograms, and we want to accelerate the ship to a speed of 10% of the speed of light. a. How Inuch energy would be required? (Hint; You can find the answer simply by calculating the kinetic energy of the ship when it reaches its cruising speed; because 10% of the speed of light is still small compared to the speed of light, you can use thsi formula kinetic energy = 1/2 x m x v2) b. How does your answer coInpare to total world energy use 5 x 1022 Joules? c. The typical cost of energy today is roughly 5¢ per 1 million joules. At this price, how much would it cost to generate the energy needed by this spaceship?arrow_forwardImagine that it were possible to construct a combination spacecraft and time machine, for the purpose of visiting various parts of the solar system in the distant past and future. If you and a friend had such a thing, and your friend said "let's go stand on the surface of the Earth during the accretion phase of its early history", why might that not be a good idea? Group of answer choices The Earth would be so barren and inactive, with virtually no atmosphere and nothing happening on its surface, that you wouldn't find any resources to survive. This phase happened shortly after the Moon formed, so the Earth's surface might still be hot after the Moon-forming impact. During the Earth's accretion phase, there were many hazardous life forms on its surface, such as dinosaurs and other potentially predatory animals. Many asteroids and meteoroids would be impacting the surface of the Earth, as they built up the planet. PreviousNextarrow_forward
- The principle cause of our intense interest in Mars in the decades before the dawn of the space age was that Answers: A. a few astronomers believed that they saw evidence of an intelligent civilization on Mars. B. Mars has seasons just like the Earth and therefore should be inhabitable by humans. C. Mars has an unusual surface color and global dust storms, creating strange weather patterns. D. Mars has unusual orbital properties making our understanding of its motion around the Sun very difficult.arrow_forwardMultiple choice, Write the letter of your answer. This is all about General Physics 1: Conservation of ME.arrow_forwardWhich of the following statements are NOT true about NASA's earliest days? NASA's early days were marked by spectacular failures and wild rocket malfunctions. Werner von Braun and other German Scientists were key to the development of the American Rocket Program . It had its origins in the United States and Soviet Union cooperating in developing German Rocket technology following World War Two No answer text provided . NASA initially lagged far behind the Soviets in terms of successful space vehicle and rocket development.arrow_forward
- Define the theory of relativity? State the two theories of relativity. Differentiate the two theories of relativity. State two features of the Earth that enables life to exist.arrow_forwardIf we send astronauts to Mars, there will be a time delay anytime we send or receive messages to them here on Earth. Given that Mars is an average of 54.6 million km away from Earth, how long is this time delay for a 2-way 'round-trip' communication - sent to Earth, then back to Mars? (this might be important in emergency situations) answer choices a)About 4 minutes. b)About 30 seconds. c)About 10 seconds. d)About 6 minutes.arrow_forwardAccording to modern science, Earth is about 4.5 billion years old and written human history extends back about 10,000 years. Suppose the entire history of Earth is represented with a 100-meter-long timeline, with the birth of Earth on one end and today at the other end. a. What distance represents 1 billion years? b. How far from the end of the timeline does written human history begin? a. 1 billion years is represented by meters of the timeline. (Type an integer or decimal rounded to the nearest tenth as needed.) millimeters from the end of the timeline. b. Written human history begins about (Type an integer or decimal rounded to the nearest hundredth as needed.)arrow_forward
- Using the GUFSA Template. Round off your final answer to the nearest hundredths. As we already know, rockets travel at very high speeds. How much time will it take a rocket (in seconds) to reach the moon if the moon is 238,900 miles away from the Earth, and the rocket is travelling 1,800,000 centimeters per minute? (express your answer in meters per second)arrow_forwardWhich of the following statements could be considered scientific statements ? 1. There is water on the surface of Mars. 2. The universe contains atoms we will never detect. It is wrong to cheat. O A. C. 1 2, and 3 are all scientific B. None of the statements is scientific OC.A. Only 1 is scientific () D. B. 1 and 2 are scientificarrow_forwardW MYUW A Phy201 HW 3 A Phy201 HW 3 - Physics 201 x Home | Chegg.com My Questions bartleby i webassign.net/web/Student/Assignment-Responses/submit?dep=26280453&tags=autosave#question3955715_10 Submit Answer 3. [-/6 Points] DETAILS SERPSE10 4.2.OP.005.MI. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A fish swimming in a horizontal plane has velocity v = (4.00 î + 1.00 j) m/s at a point in the ocean where the position relative to a certain rock is F = (16.0 i - 3.00 j) m. After the fish swims with constant acceleration for 17.0 s, its velocity is v = (21.0 î - 3.00 j) m/s. (a) What are the components of the acceleration of the fish? a, = m/s2 a, = m/s2 (b) What is the direction of its acceleration with respect to unit vector î? ° counterclockwise from the +x-axis (c) If the fish maintains constant acceleration, where is it at t = 28.0 s? y = In what direction is it moving? ° counterclockwise from the +x-axis Need Help? Read It Master It PRACTICE ANOTHER MY NOTES ASK YOUR TEACHER 4. [-/2…arrow_forward